CN110920373A - Three-stage positioning and locking device and method for battery replacing box of electric heavy truck - Google Patents
Three-stage positioning and locking device and method for battery replacing box of electric heavy truck Download PDFInfo
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- CN110920373A CN110920373A CN201911357127.8A CN201911357127A CN110920373A CN 110920373 A CN110920373 A CN 110920373A CN 201911357127 A CN201911357127 A CN 201911357127A CN 110920373 A CN110920373 A CN 110920373A
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- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 11
- 210000002105 tongue Anatomy 0.000 description 33
- 230000000903 blocking effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0455—Removal or replacement of the energy storages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
The invention provides a three-level positioning and locking device and a three-level positioning and locking method for a battery box of an electric heavy truck, wherein the device comprises the following components: the battery box fixing base is provided with an inclined block part, a positioning conical pin, a connector socket guide hole and a side-inserting type locking mechanism; the inner surface of the cross beam at the bottom of the battery box is matched with an inclined block positioning part of the fixed base, a positioning hole is arranged to be matched with a conical pin of the fixed base, and a connector plug guide column is arranged to be matched with a connector socket guide hole. In the falling process of the battery box, the battery box is positioned by the inclined block, the conical pin and the connector guide pillar in sequence, so that the three-stage positioning of coarse positioning, fine positioning and coupling positioning of the battery box is realized, and finally, the reliable positioning of the battery box and the reliable connection of the connector are realized. According to the invention, through three-stage positioning and locking, accurate and reliable positioning can be realized under the condition that the battery box has a large horizontal error in the process of placing the battery box in a hoisting mode, and the battery box replacement device is suitable for replacing batteries of battery replacement heavy trucks.
Description
Technical Field
The invention relates to the field of electric replacement of an electric heavy truck, in particular to a three-level positioning and locking device and method for a battery box of the electric heavy truck.
Background
At present, in the field of replacing batteries of electric heavy trucks, a battery box adopts a quick replaceable structure, and replacement can be completed in a special replacing station. And the battery replacing box takes down the discharged battery box under the action of the special battery replacing device, puts the discharged battery box on a charging station, and loads the charged battery box on the electric heavy truck. The container is hoisted and taken down under the action of the special hoisting clamp. The battery box has the advantages that the battery box can be replaced in a short time; the battery box adopts the hoist and mount mode at the trade electric in-process, and the stone tongs adopts the coiling steel cable mode to realize the up-and-down motion, and the horizontal accuracy is difficult to realize the high accuracy location, and the location to the battery box in-process of placing causes the difficulty, consequently places the location design of in-process at the battery box and is especially important.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a three-stage positioning and locking device and a three-stage positioning and locking method for an electric heavy truck battery replacing box, which are used for positioning the electric heavy truck battery replacing box in the placing process.
According to a first aspect of the invention, a three-stage positioning and locking device for an electric heavy truck battery replacing box is provided, which comprises: battery box unable adjustment base, battery box unable adjustment base is a square frame, wherein:
each side of the square frame is provided with an inclined block positioning part, the inclined block positioning parts are positioned on the inner sides of the square frame, and the inclined surfaces of the inclined block positioning parts face outwards and are used for realizing coarse positioning of the battery box;
positioning conical pins are further arranged on two opposite sides of the square frame, the height of each positioning conical pin is smaller than that of the inclined block positioning component, and the positioning conical pins are inserted into positioning holes in the bottom of the battery box and used for realizing fine positioning of the battery box;
a connector plug guide hole is also formed in the square frame, the positioning conical pin is higher than the connector plug guide hole, and a connector plug guide post on the battery box is inserted into the connector plug guide hole to realize connector coupling positioning;
and a side-inserting type locking mechanism is arranged on the inclined block positioning component and locks after the inclined block positioning component, the positioning conical pin and the connector plug guide hole are connected with the battery box.
Optionally, the side-inserted locking mechanism comprises a cylinder, a connecting mechanism, a pneumatic fixing tongue and a locking main body; the pneumatic fixing bolt is characterized in that a push rod pushing end of the air cylinder is connected with one end of the connecting mechanism, the other end of the connecting mechanism is connected with the pneumatic fixing bolt, a locking hole matched with the pneumatic fixing bolt in shape and size is formed in the locking main body, and the pneumatic fixing bolt is pushed and inserted into the locking hole through the connecting mechanism under the action of the air cylinder.
Optionally, locking coupling mechanism includes compression spring, connecting rod, holding screw and spring catch, wherein, compression spring to pneumatic fixed tongue provides thrust, the one end of connecting rod is connected the push rod of cylinder and between the two through setting up the holding screw top is tight, the other end of connecting rod is connected pneumatic fixed tongue and through setting up the spring catch makes and constitutes the connection of floating between the two.
Optionally, a guide sleeve is sleeved on the connecting rod at the periphery of one side of the pneumatic fixing tongue, and a sliding sleeve is further arranged between the pneumatic fixing tongue and the guide sleeve.
Optionally, a limit sleeve for limiting the displacement of the sliding sleeve is further arranged on the connecting rod.
Optionally, a baffle is arranged on one side of the locking main body, a blocking hole is formed in the baffle, the aperture of the blocking hole is smaller than that of the locking hole, and the blocking hole limits circumferential rotation of the pneumatic fixing tongue.
Optionally, the connector plug guide hole is provided on a support member, and both ends of the support member are respectively connected to the middle of a set of opposite sides of the square frame.
Optionally, the swash block positioning member is a square columnar member, and an inclined surface is arranged at the upper end of the swash block positioning member and faces the outer side of the square frame; the positioning taper pin is positioned on one side of the inclined block positioning part, and the top of the inclined block positioning part is set to be tapered.
Optionally, the swash block positioning members and the positioning tapered pins are symmetrically arranged, one side of each swash block positioning member located on one group of opposite sides of the frame is provided with the positioning tapered pin, and the other side of each swash block positioning member is provided with a reinforcing member for increasing strength; the positioning conical pin is arranged on a positioning block, and the positioning block is fixed on the long edge of the square frame.
According to a second aspect of the invention, a three-level positioning and locking method for an electric heavy truck battery replacing box is provided, which comprises the following steps:
an inclined block positioning part, a positioning conical pin, a connector socket guide hole and a side-inserting type locking mechanism are arranged on the battery box fixing base;
the outer contour of the frame of the battery box is matched with the shape of the fixing base of the battery box, and the bottom of the frame of the battery box is provided with a positioning hole and a connector plug guide post;
the method comprises three levels of positioning, wherein:
battery box coarse positioning: positioning and matching the outer contour of the battery box frame with an inclined block positioning part of the battery box fixing base;
fine positioning of the battery box: after the battery box is roughly positioned, matching a positioning hole of the battery box with a positioning taper pin of a fixing base of the battery box;
connector coupling positioning: after the battery box is precisely positioned, a connector plug guide post of the battery box is matched with a connector socket guide hole;
and finally, matching and locking the bottom cross beam of the battery box frame with the side-inserted locking mechanism.
Compared with the prior art, the invention has at least one of the following beneficial effects:
the device and the method can realize accurate and reliable positioning under the condition that the battery box has large horizontal error in the process of placing the battery box in a hoisting mode through three-level positioning, and are suitable for replacing batteries of the battery box of a replacement weight truck.
Furthermore, the device and the method of the invention can conveniently and reliably fix the battery replacing box by driving the air cylinder to push the pneumatic fixing tongue through the vehicle-mounted air source, and can rapidly release the fixed state of the battery replacing box by driving the air cylinder to pull the pneumatic fixing tongue through the vehicle-mounted air source when the battery replacing box needs to be replaced.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a perspective view of a battery box fixing base according to a preferred embodiment of the present invention;
FIG. 2 is a top view of a battery box fixing base according to a preferred embodiment of the present invention;
FIG. 3 is a long side view of a battery case fixing base according to a preferred embodiment of the present invention;
FIG. 4 is a short side view of a battery case fixing base according to a preferred embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a battery box according to a preferred embodiment of the present invention;
FIG. 6 is a schematic view of the connection between the side-insertion-type locking mechanism and the positioning member of the cam follower in accordance with a preferred embodiment of the present invention;
FIG. 7 is an exploded view of the side-entry locking mechanism and the ramp locating feature of FIG. 6;
the scores in the figure are indicated as: the battery box locking mechanism comprises a battery box fixing base 1, an inclined block positioning part 2, a positioning taper pin 3, a connector socket guide hole 4, a side-inserted locking mechanism 5, a connector socket 6, a battery box 7, a connector plug 8, a battery box bottom cross beam 9, a positioning hole 10, a connector plug guide column 11, a reinforcing part 12, a positioning block 13 and a supporting part 14, wherein the inclined block positioning part is arranged on the battery box fixing base 1;
501 is a cylinder, 502 is a limit sleeve, 503 is a compression spring, 504 is a connecting rod, 505 is a pneumatic fixing tongue, 506 is a set screw, 507 is a guide sleeve, 508 is a sliding sleeve, 509 is a spring pin, 510 is a locking body, 511 is a baffle, 512 is a baffle mounting screw, and 513 is a cylinder mounting screw.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Referring to fig. 1-4, a three-level positioning and locking device for an electric heavy truck battery replacing box 7 comprises: battery box unable adjustment base 1, this battery box unable adjustment base 1 are used for battery box 7 to match, and battery box unable adjustment base 1's shape and size and battery box 7 phase-match, battery box unable adjustment base 1 are equipped with the side of being used for tertiary location sloping block locating part 2, location taper pin 3, connector socket guide hole 4 and being used for fixing a position back locking mechanism 5 of inserting. Referring to fig. 5, the inner surface of the cross beam 9 at the bottom of the battery box frame is matched with the inclined block positioning part 2 of the battery box fixing base 1, and the positioning hole 10 at the bottom of the battery box 7 frame is matched with the positioning taper pin 3 of the battery box fixing base 1; the connector plug guide posts 11 at the bottom of the frame of the battery case 7 are fitted into the connector receptacle guide holes 4 of the battery case fixing base 1. The frame beam 9 at the bottom of the battery box is matched with the side-inserted locking mechanism 5, and finally the reliable positioning of the battery box 7 and the reliable connection of the connector are realized.
Specifically, fig. 1 to 4 are schematic views of a battery box fixing base 1 according to a preferred embodiment of the present invention. In the embodiment, the battery box fixing base 1 is a rectangular frame, each side of the rectangular frame is provided with an inclined block positioning part 2, the inclined block positioning parts 2 are positioned at the inner sides of the rectangular frame, and the inclined surfaces of the inclined block positioning parts 2 are outward to realize coarse positioning of the battery box 7; and two opposite sides (long sides) of the rectangular frame are also provided with positioning conical pins 3, the height of each positioning conical pin 3 is smaller than that of the inclined block positioning part 2, and the positioning conical pins 3 are inserted into positioning holes 10 at the bottom of the battery box 7 and used for realizing precise positioning of the battery box 7. Referring to fig. 2, a connector socket guide hole 4 is further formed in the rectangular frame of the battery box fixing base 1, the height of the positioning taper pin 3 is higher than that of the connector socket guide hole 4, and the connector plug guide post 11 on the battery box 7 is inserted into the connector socket guide hole 4 to realize connector coupling positioning. The sloping block positioning part 2 is provided with a side-inserting type locking mechanism 5, and the side-inserting type locking mechanism 5 is locked after the sloping block positioning part 2, the positioning taper pin 3 and the connector socket guide hole 4 are connected with the battery box 7.
Specifically, the number of the inclined block positioning parts 2 in the embodiment is 6, the inclined block positioning parts are fixed on the periphery of the inner side of the frame of the battery box fixing base 1, 4 inclined block positioning parts are arranged in the length direction of the rectangular frame, and 2 inclined block positioning parts are arranged in the width direction of the rectangular frame; 4 positioning taper pins 3 are fixed on the inner side of the frame of the battery box fixing base 1, and the inclined block positioning component 2 and the positioning taper pins 3 are preferably symmetrically arranged.
Fig. 3 and 4 are a long side view and a short side view of the battery box fixing base 1 according to a preferred embodiment of the present invention, and as shown by a dimension H1, the height of the wedge positioning member 2 is higher than that of the positioning taper pin 3. In the middle of the frame of the battery box fixing base 1, 4 connector sockets 6 are fixed, each connector socket 6 having two guide holes for coupling positioning with a connector plug 8. And the height of the locating taper pins 3 is longer than the height of the connector receptacle guide holes 4, as shown by dimension H2. Through the arrangement of different heights, when three-level positioning is carried out, accurate positioning is realized from top to bottom.
Fig. 5 is a schematic structural diagram of a battery box 7 according to a preferred embodiment of the present invention. As shown in fig. 5, the battery box 7 is a frame structure, and the bottom of the frame of the battery box 7 is provided with a connector plug 8, a cross beam 9 at the bottom of the battery box 7, a positioning hole 10, and a connector plug guide post 11 for matching and positioning with a component of the battery box fixing base 1. The connector plug 8 is arranged on a cross beam 9 at the bottom of the battery box 7, the connector plug guide posts 11 are arranged near the connector plug 8, the positioning holes 10 are positioned at one side of the connector plug guide posts 11, four connector plugs 8 are arranged at the bottom of the frame structure of the battery box 7, each connector plug is provided with two connector plug guide posts 11, and the connector plug guide posts 11 are coupled and positioned with the connector sockets 6; 4 positioning holes 10 are fixed at the bottom of the box body frame structure of the battery box 7, and the positioning taper pins 3 of the battery box fixing base 1 are inserted into the 4 positioning holes 10 to realize the matching of the battery box fixing base and the positioning taper pins.
Referring to fig. 1, the connector receptacle guide holes 4 are provided on a support member 14, and both ends of the support member 14 are respectively connected to the centers of a set of opposite sides of a square frame, i.e., a pair of long sides of the rectangular frame shown in the drawing. The support 14 may be parallel to a set of short sides of the rectangular frame. Of course, in other embodiments, the design may be selected according to actual situations, and is not limited to this.
Referring to fig. 1 to 4, in the above embodiment, the 6 swash block positioning members 2 are square columnar members, and the upper ends thereof are provided with inclined surfaces facing the outer sides of the square frames; the positioning taper pin 3 is positioned at one side of the inclined block positioning part 2, and the top of the inclined block positioning part 2 is set to be in a taper shape. The angle of the inclined plane may be equal to or less than 45 degrees, and in other embodiments, the design may be selected according to actual situations, and is not limited to this. Similarly, in other embodiments, the column may have other shapes, and is not limited to a square shape.
Referring to fig. 1-4, in the above embodiment, the swash block positioning members 2 and the positioning taper pins 3 are symmetrically arranged, and the positioning taper pins 3 are arranged on one side of the swash block positioning members 2 located on a group of opposite sides of the rectangular frame, and the reinforcing members 12 for increasing strength are arranged on the other side of the swash block positioning members 2, so that stability is ensured, and safety is improved. The positioning taper pin 3 is arranged on a positioning block 13, and the positioning block 13 is fixed on the long edge of the square frame. The positioning blocks 13 are also symmetrically arranged, and through the symmetrical arrangement, a better balance effect is provided for positioning and locking in the battery replacing process of the whole battery box 7.
Fig. 6 and 7 are a structural diagram and an exploded diagram of the connection between the side-inserted locking mechanism 5 and the sloping block positioning component 2 in a preferred embodiment of the invention. As shown in fig. 6 and 7, in the preferred embodiment, the side-insertion type locking mechanism 5 includes a cylinder 501, a connecting mechanism, a pneumatic fixing tongue 505, and a locking main body 510; the locking connection mechanism includes a compression spring 503, a connecting rod 504, a set screw 506, and a spring pin 509. The pneumatic fixing tongue 505 can be inserted into a locking hole in the middle of the locking main body 510 under the pushing action of the air cylinder 5011, so that the battery replacing box 7 can be conveniently fixed on a heavy truck, and when the battery box 7 needs to be replaced, the fixing state of the battery replacing box 7 can be quickly released by pulling the pneumatic fixing tongue 505 through the air cylinder 501, so that the battery box 7 can be quickly replaced. The compression spring 503 provides thrust to the pneumatically fixed tongue 505 as a power source for the same. The compression spring 503 is sleeved outside the connecting rod 504; one end of the connecting rod 504 is fixedly connected with the push rod of the cylinder 501, and the other end is fixedly connected with the pneumatic fixing tongue 505 through a spring pin 509; the spring pin 509 is a flexible component elastically deformable along the radial direction of the push rod of the cylinder 501, and makes a flexible floating connection between the pneumatic fixing tongue 505 and the connecting rod 504, so as to avoid radial impact force borne by the pneumatic fixing tongue 505 from acting on the push rod of the cylinder 501. A set screw 506 is provided on the connecting rod 504 which abuts against a contact portion of the connecting rod 504 and the push rod of the cylinder 501, and which abuts against thereby preventing the screw from being loosened between the cylinder 501 and the connecting rod 504.
As shown in fig. 7, in some preferred embodiments, the pneumatic tongue 505 is sleeved with a guide sleeve 507, and the guide sleeve 507 is used for guiding the radial movement of the pneumatic tongue 505. The sliding sleeve 508 is installed between the pneumatic fixing tongue 505 and the guide sleeve 507, and plays a role in reducing friction and guiding. The stop collar 502 serves to limit the amount of displacement of the sliding sleeve 508. Further, in other embodiments, a baffle 511 is disposed on the outer side of the locking body 510 compared to the pneumatic fixing tongue 505, and a blocking hole matched with the pin head portion of the pneumatic fixing tongue 505 is formed on the baffle 511, and the blocking hole can limit the pneumatic fixing tongue 505 and the sliding sleeve 508, and simultaneously prevent the pneumatic fixing tongue 505 from rotating axially. In some embodiments, the shape and size of the main body portion and the pin head portion of the pneumatic tongue 505 during processing can be designed according to actual conditions, but the outer contour shape and size of the pin head portion need to be smaller than those of the main body portion, so as to cooperate with the baffle 511 disposed at one side of the locking main body 510 to complete the position limitation of the pneumatic tongue 505 and the sliding sleeve 508. The baffle and the cylinder can be mounted by a baffle mounting screw 512 and a cylinder mounting screw 513.
When the side-plug type locking mechanism 5 works, the air cylinder 501 starts to work, the push rod extends, the push rod applies thrust to the compression spring 503, the compression spring 503 compresses on the connecting rod 504 and transmits the thrust to the spring pin 509, under the action of the thrust of the spring pin 509, the pneumatic fixing tongue 505 and the sliding sleeve 508 start to move radially under the guidance of the guide sleeve 507, namely move towards the locking hole formed in the locking main body 510 until the pin head part of the pneumatic fixing tongue 505 extends out of the stop hole on the stop plate 511, so that locking is completed. When the battery box 7 needs to be replaced, the pneumatic fixing tongue 505 is pulled by the air cylinder 501 to be separated from the blocking hole of the blocking plate 511, so that unlocking is completed. The air cylinder 501 is used as a power source, the pneumatic fixing tongue 505 is driven by pushing and pulling of the air cylinder 501, locking and unlocking of the power-change battery box 7 are achieved, and quick and convenient installation and replacement of the battery box 7 are achieved.
In another embodiment of the present invention, based on the above three-stage positioning and locking device for an electric heavy truck battery replacement box 7, a three-stage positioning and locking method for an electric heavy truck battery replacement box 7 is provided, which includes: an inclined block positioning part 2, a positioning conical pin 3, a connector socket guide hole 4 and a side-inserted type locking mechanism 5 are arranged on a battery box fixing base 1; the outer contour of the frame of the battery box 7 is matched with the shape of the battery box fixing base 1, and the bottom of the frame of the battery box 7 is provided with a positioning hole 10 and a connector plug guide post 11; the whole electric heavy truck battery box 7 three-level positioning and locking method comprises three-level positioning, specifically comprises 7-level coarse positioning, 7-level fine positioning and connector coupling positioning of the battery box, wherein:
the first-stage positioning, namely the coarse positioning of the battery box 7: the outer contour of the frame of the battery box 7 is matched with the positioning part 2 of the inclined block of the battery box fixing base 1 in a positioning way;
the second-stage positioning, namely the fine positioning of the battery box 7: after the battery box 7 is roughly positioned, the positioning hole 10 of the battery box 7 is matched with the positioning taper pin 3 of the battery box fixing base 1;
third level positioning, i.e. connector coupling positioning: after the battery box 7 is precisely positioned, a connector plug guide post 11 of the battery box 7 is matched with the connector socket guide hole 4;
finally, the bottom cross beam of the frame of the battery box 7 is matched and locked with the side-inserted locking mechanism 5.
Specifically, in the three-level positioning and locking method for the battery box 7 of the electric heavy truck, the positioning sequence is designed as follows: because the height of the sloping block positioning part 2 is higher than that of the positioning conical pin 3, and the height of the positioning conical pin 3 is higher than that of the connector socket guide hole 4, the installation height of the connector plug 8 and the socket is properly adjusted, the positioning sequence is that after the sloping block positioning part 2 is positioned, the positioning conical pin 3 starts to enter the positioning hole 10, and after the positioning conical pin 3 is positioned, the connector plug guide post 11 starts to enter the connector socket guide hole 4.
In the process of the falling of the battery box 7, the inner side of the bottom of the frame of the battery box 7 firstly contacts the sloping block positioning part 2, when the frame at the bottom of the battery box 7 slides across the inclined plane of the sloping block positioning part 2 and enters the vertical plane, the primary coarse positioning of the battery box 7 is completed, and the bottom of the frame of the battery box 7 is limited among the 6 sloping block positioning parts 2. In the process of continuing to descend the battery box 7, the positioning tapered pin 3 of the battery box fixing base 1 enters the positioning hole 10 at the bottom of the battery box 7, and when the inner surface of the positioning hole 10 slides over the tapered inclined surface of the positioning tapered pin 3 and enters the vertical surface, the accurate positioning of the battery box 7 is completed. And in the process that the battery box 7 continues to descend, the connector plug guide post 11 enters the connector socket guide hole 4, the battery box 7 continues to descend, the opposite insertion is completed, and the coupling positioning of the connector is realized.
After the battery box 7 is positioned, the air cylinder 501 is started to eject the pneumatic fixing tongue 505, the pneumatic fixing tongue 505 extends out and presses on the cross beam 9 at the bottom of the battery box 7, and the battery box 7 is pressed on the battery box fixing base 1 through the 6 pneumatic fixing tongues 505, so that the fixing reliability of the battery box 7 in the driving process of the vehicle is ensured.
The embodiment of the three-stage positioning and locking device and method for the electric heavy truck battery box 7 has been described by specifically arranging the battery box fixing base 1 with a rectangular frame, the 6 inclined block positioning parts 2, the 6 pneumatic fixing tongues 505 and the like, and in other embodiments, the number can be adjusted according to actual conditions, and is not limited to the embodiment described above. Meanwhile, the above-described preferred features may be used in any combination without conflict with each other.
According to the embodiment of the invention, accurate and reliable positioning can be realized under the condition that the battery box has a large horizontal error in the process of placing the battery box in a hoisting mode through three-level positioning and locking, the requirement on the position of the battery box in the hoisting process is not high, so that the hoisting position of the battery box is easier to control, the hoisting positioning and the locking after positioning of battery box battery replacement can be realized more conveniently and simply, the battery box battery replacement device is particularly suitable for battery box battery replacement of a battery replacement card, and the safety and the reliability of battery box positioning and installation are provided.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. The utility model provides a tertiary location locking device of battery box is traded to electronic heavily block which characterized in that: including battery box unable adjustment base, battery box unable adjustment base is a square frame, wherein:
each side of the square frame is provided with an inclined block positioning part, the inclined block positioning parts are positioned on the inner sides of the square frame, and the inclined surfaces of the inclined block positioning parts face outwards and are used for realizing coarse positioning of the battery box;
positioning conical pins are further arranged on one group of opposite sides of the square frame, the height of each positioning conical pin is smaller than that of the inclined block positioning component, and the positioning conical pins are inserted into positioning holes in the bottom of the battery box and used for realizing fine positioning of the battery box;
a connector plug guide hole is also formed in the square frame, the height of the positioning conical pin is higher than that of the connector plug guide hole, and a connector plug guide post on the battery box is inserted into the connector plug guide hole to realize connector coupling positioning;
and a side-inserting type locking mechanism is arranged on the inclined block positioning component and locks after the inclined block positioning component, the positioning conical pin and the connector plug guide hole are connected with the battery box.
2. The three-level positioning and locking device for the electric heavy truck battery replacing box as claimed in claim 1, characterized in that: the side-inserted type locking mechanism comprises a cylinder, a connecting mechanism, a pneumatic fixing tongue and a locking main body; the pneumatic fixing bolt is characterized in that a push rod pushing end of the air cylinder is connected with one end of the connecting mechanism, the other end of the connecting mechanism is connected with the pneumatic fixing bolt, a locking hole matched with the pneumatic fixing bolt in shape and size is formed in the locking main body, and the pneumatic fixing bolt is pushed and inserted into the locking hole through the connecting mechanism under the action of the air cylinder.
3. The three-level positioning and locking device for the electric heavy truck battery replacing box as claimed in claim 2, characterized in that: locking coupling mechanism includes compression spring, connecting rod, holding screw and spring catch, wherein, compression spring to pneumatic fixed tongue provides thrust, the one end of connecting rod is connected the push rod of cylinder and between the two through setting up the holding screw top is tight, the other end of connecting rod is connected pneumatic fixed tongue and through setting up the spring catch makes and constitutes the connection of floating between the two.
4. The three-level positioning and locking device for the electric heavy truck battery replacing box as claimed in claim 3, characterized in that: the connecting rod is sleeved with a guide sleeve at the periphery of one side of the pneumatic fixing tongue, and a sliding sleeve is arranged between the pneumatic fixing tongue and the guide sleeve.
5. The three-level positioning and locking device for the electric heavy truck battery replacing box as claimed in claim 4, wherein: and the connecting rod is also provided with a limit sleeve for limiting the displacement of the sliding sleeve.
6. The three-level positioning and locking device for the electric heavy truck battery replacing box as claimed in claim 2, characterized in that: one side of locking main part is provided with the baffle, the hole that keeps off has been seted up on the baffle, the aperture that keeps off the hole is less than the aperture in locking hole, keep off the hole restriction the circumferential direction of pneumatic fixed tongue.
7. The three-stage positioning and locking device for the electric heavy truck battery replacing box according to any one of claims 1 to 6, characterized in that: the connector plug guide hole is arranged on a support piece, and two ends of the support piece are respectively connected to the middles of a group of opposite sides of the square frame.
8. The three-stage positioning and locking device for the electric heavy truck battery replacing box according to any one of claims 1 to 6, characterized in that: the inclined block positioning part is a square columnar part, the upper end part of the inclined block positioning part is provided with an inclined plane, and the inclined plane faces the outer side of the square frame; the positioning taper pin is positioned on one side of the inclined block positioning part, and the top of the inclined block positioning part is set to be tapered.
9. The three-stage positioning and locking device for the electric heavy truck battery replacing box according to any one of claims 1 to 6, characterized in that: the inclined block positioning component and the positioning conical pin are symmetrically arranged, one side of the inclined block positioning component positioned on one group of opposite sides of the square frame is provided with the positioning conical pin, and the other side of the inclined block positioning component is provided with a reinforcing component for increasing strength; the positioning conical pin is arranged on a positioning block, and the positioning block is fixed on the long edge of the square frame.
10. A three-level positioning and locking method for a battery replacing box of an electric heavy truck is characterized by comprising the following steps: the method comprises the following steps:
an inclined block positioning part, a positioning conical pin, a connector socket guide hole and a side-inserting type locking mechanism are arranged on the battery box fixing base;
the outer contour of the frame of the battery box is matched with the shape of the fixing base of the battery box, and the bottom of the frame of the battery box is provided with a positioning hole and a connector plug guide post;
the method comprises three levels of positioning, wherein:
battery box coarse positioning: positioning and matching the outer contour of the battery box frame with an inclined block positioning part of the battery box fixing base;
fine positioning of the battery box: after the battery box is roughly positioned, matching a positioning hole of the battery box with a positioning taper pin of a fixing base of the battery box;
connector coupling positioning: after the battery box is precisely positioned, a connector plug guide post of the battery box is matched with a connector socket guide hole;
and finally, matching and locking the bottom cross beam of the battery box frame with the side-inserted locking mechanism.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911357127.8A CN110920373B (en) | 2019-12-25 | 2019-12-25 | Three-level positioning and locking device and method for electric heavy-duty truck battery box |
| PCT/CN2020/103699 WO2021128826A1 (en) | 2019-12-25 | 2020-07-23 | Battery-replaceable load-bearing motion apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911357127.8A CN110920373B (en) | 2019-12-25 | 2019-12-25 | Three-level positioning and locking device and method for electric heavy-duty truck battery box |
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| CN110920373A true CN110920373A (en) | 2020-03-27 |
| CN110920373B CN110920373B (en) | 2024-04-09 |
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| CN112498278A (en) * | 2020-11-24 | 2021-03-16 | 上海能辉科技股份有限公司 | Mistake proofing formula heavily blocks battery and electric plug butt joint system |
| CN112952598A (en) * | 2021-03-30 | 2021-06-11 | 三一汽车制造有限公司 | Power supply equipment and engineering vehicle |
| CN113043905A (en) * | 2021-05-12 | 2021-06-29 | 安徽华菱汽车有限公司 | Locking mechanism of battery replacement system of pure electric heavy truck |
| WO2021128826A1 (en) * | 2019-12-25 | 2021-07-01 | 上海玖行能源科技有限公司 | Battery-replaceable load-bearing motion apparatus |
| CN113386547A (en) * | 2021-08-16 | 2021-09-14 | 中国华能集团清洁能源技术研究院有限公司 | Adjustable battery pack locking mechanism suitable for hoisting type battery replacing vehicle |
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